212 - Dr. Maton’s and Mr. RACKETT’S 
fractus planiusculi, gequabiliter decrescentes; linea tenui discreti, 
Spira acuta. 
This is either a rare, or very local species. It is pro- 
bably the shell figured by Pennant for H. octona. Mr. 
Montagu has found it between Looe and Fowey, in Corn- 
wall. We have procured it from a gravel-pit between 
Litchet and Lower Litchet, Dorset ; and it is said to 
inhabit a pond at Nine Elms, near Vauxhall, DUN: 
48. 
Lackham-M. testa subperforata, ETRA T apertura 
ensis. subrotundo-lunata, margine reflexo. 
Montagu Test. Brit. p. 394. t. 11. f. 3. 
Habitat in nemoribus humectantibus. Incola pallidus. 
Testa 4 poll. longa, + lata, sordide brunnea, cornea vel cinerascens, sub- 
pellucida, paululum inflata, leviter rugosa. H. obscure affinis, sed duplo 
major, neque tam opaca. Apertur@ margo exterius magis reflexus. 
This rare species was discovered by Mr. Montagu ; 
and found only in woods, at Lackham, and Bow-Wood, 
T 
49. 
, obscura. H. testa subperforata, ovato-oblongiuscula, impura, an- 
 £&5f.1l. fractibus 5—7, subrugosis, apertura. subrotundo-lu- 
nata, labro candido. Linn. Gmel. p. 3661. n. 141. 
Muller Verm. 2. p. 103. n. 302. 
Da Costa Brit. Conch. p. 90. Turbo Rupium ? 
Walker Test. Min. Rar. f. 41. 
_Favanne Conch. t. 65. f. F. _ 
Montagu Test. Brit. p. 391. E sene: 22. f. 5. 
Pulteney in | Hutch. Dorset. p tim t. a S z. H. stag- 
is Habitat i in iiis, ape eh et fraxini is Siit in dios aridis. 
Testa B — sy pingan + lata, opaca, fusca, ventricosa. Anfractus 
tund iv helene Seas mn is een 
Found 
